Graph the equation y = -x2 + 2x + 3 on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Using the graph, determine the roots of the equation -x2 + 2x + 3 = 0. Click to plot points. Click points to delete them. 10 6 HNWA UT -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 8 9 10 A CO